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CVE-2024-55948— Anonymous cache poisoning via XHR requests in Discourse

CVSS 8.2 · High EPSS 0.08% · P24
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I. Basic Information for CVE-2024-55948

Vulnerability Information
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Vulnerability Title
Anonymous cache poisoning via XHR requests in Discourse
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open source platform for community discussion. In affected versions an attacker can make craft an XHR request to poison the anonymous cache (for example, the cache may have a response with missing preloaded data). This issue only affects anonymous visitors of the site. This problem has been patched in the latest version of Discourse. Users are advised to upgrade. Users unable to upgrade should disable anonymous cache by setting the `DISCOURSE_DISABLE_ANON_CACHE` environment variable to a non-empty value.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
源验证错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
Discourse 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是Discourse开源的一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse存在访问控制错误漏洞，该漏洞源于攻击者可以通过精心构造的XHR请求来污染匿名缓存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
discoursediscourse stable: < 3.3.2 -

II. Public POCs for CVE-2024-55948

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III. Intelligence Information for CVE-2024-55948

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Same Patch Batch · discourse · 2025-02-04 · 9 CVEs total

CVE-2025-230238.2 HIGHAnonymous cache poisoning via request headers in Discourse
CVE-2024-563286.5 MEDIUMHTMLi(XSS without CSP) via Onebox urls in Discourse
CVE-2025-226026.5 MEDIUMStored DOM-based XSS (without CSP) via video placeholders in Discourse
CVE-2024-532664.3 MEDIUMCross-site Scripting (XSS) via topic titles when CSP disabled in Discourse
CVE-2024-538514.3 MEDIUMPartial denial of service via inline oneboxes in Discourse
CVE-2024-539944.3 MEDIUMPotential bypass of chat permissions in Discourse
CVE-2025-226013.1 LOWClient Side Path Traversal using activate account route in Discourse
CVE-2024-561972.2 LOWUsers can see other user's tagged PMs in Discourse

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-346

V. Comments for CVE-2024-55948

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